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The only outlets that need to be ground-fault protected are those in proximity to water exposure, ergo, bathroom sink, kitchen sink, outdoor outlet and pass-through outlet. For our 3121RL that is a total of 5 outlets on a 20 amp circuit. The GFCI outlet that provides protection for that entire circuit happens to be in the bathroom. You don't need multiple GFCI outlets unless you have multiple circuits that need to be protected.
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